Steam-regenerative accumulator.



No. 761,606. PATENTED MAY 31,1904.

'A.O.E.RATEAU.

STEAM REGENERATIVE AOGUMULATOR.

APPLI OATION FILED MAR. 25, 1902.

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N0 MODEL.

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' UNITE STAT Patented. May 31, 19 04.

lPzYrENT O FICE.

nEIssUED 'AueUsTE CAMIIJLE EDMOND RATEAU, OF PARIS, FRANCE, ASSIGNOR TOSOGIETE DEXPLOITATION, DES APPAREILS RATEAU, or

PARIS, FRANCE.

STEAM-REGENERATIVE ACCUMULATOR.

SPECIFICATION forming part of Letters Patent No. 761,606, datedMay 31,1904.

Application filed March 25, 1902. Serial No. 99,923. I (No model.) I

To aZLwhom it may concern: I

- Be it known that I, AUGUSTE OAMILLE ED- MOND RATEAU, engineer, acitizen of the French Republic, residing at Paris, France,

have invented certain new and useful Improvements in Steam-RegenerativeAccumulators, of which the following is a specification.

This invention relates to improvements in steam-regenerativeaccumulators.

In my former patent, No. 679,242, I have shown how, by means of solidand liquid materials, such as pig-iron and water, a steamregenerativeaccumulator can be produced and costs nothing, it is natural thatattempts should be made to utilize it as a heat-carrier to the exclusionof all other bodies. However, the water being a bad conductor of heatgives rise to the difficulty of communicating within a short time a verylarge quantity of heat produced by the steam to be condensed to a certain quantity of water.

My present invention has for its purpose to overcome said difficulty andessentially consists in putting the water into a very active Icirculation in such a manner as to bring the steam into contact with itsdifferent elements 3 is a vertical section similar to Fig. 1, showing amodification.

As shown in the drawings, I use a horizontal cylindrical boiler E,filled to the greater part with Water. In the interior of the boiler arearranged two horizontal pipes A A, pref erably of semicircular orsubstantially semicircular section. The said pipes A A, which lead fromone end of the boiler to the other,

leave between them a central vertical space B, the breadth of which isabout a sixth of the diameter of the cylindrical boiler. The steampasses into the pipes A A through an inlet-pipe A, Fig. 2, and passesinto the central shaft B through a large number of small circular orelliptical apertures 8 in said pipes, as shown in Figs. 1 and 2, orthrough small vertical or inclined tubes 9, Fig. 3, arranged allalongthe plates forming the side walls of the shaft B. The stream of steamthus escaping into the shaft B produces a strong motion of the liquid.The said steam passes upward in the central shaft and back to the footthereof through the spaces C C between the pipes A A and the wall D ofthe boiler E. By this means a very energetic circulation of the wateris'obtained in the apparatus and all parts of the liquid are frequentlybrought into contact with the steam. Above the shaft is arranged a plateor plates 3 3, adapted to cause the liquid current to pass horizontallyand to prevent it being projected against the steam-valve tube 5 6,Fig.2, above.

. If preferred, the single central shaft B may be divided into severalshafts of the same equivalent sections.

The apparatus is provided with a safetyvalve 7 and an automatic blowthrough valve 10, which is raised by a float 11 when the interiorwater-level tends to exceed a predetermined point.

Care must be taken to previously heat the water before admitting thesteam into the apparatus, since if this were not done there would be arisk of severe impacts of water being produced by the rapid absorptionof the steam by the cold liquid. For this purpose the boiler is providedwith an auxiliary hearth F andgrate g. The said hearth may also, ifdesired, be utilized in a permanent manner for vaporizing the quantityof water which the escaping steam always carries with it when passingfrom the engines or machines Where it has been used.

Having thus described my invention, What I claim is- 1. In asteam-regenerative. accumulator in combination a boiler containing wateralone as heat-carrier, a steam-inlet pipe, pipes leading the steam fromthe inlet-pipe into the interior of the boiler, steam-outlets in thesaid pipes in order to discharge the steam into the Water and platesadapted to direct the liquid current, in the boiler substantially as described and for the purpose set forth.

2. In a steam-regenerative accumulator in combination a boilercontaining Water alone as heat-carrier adapted to regulate a current ofsteam produced by the escape from a machine having an intermittentmotion a steaminlet pipe, pipes A A leading the steam from theinlet-pipe in the interior of the boiler, a vertical shaft between thesaid pipes, steamoutlets adapted to discharge the steam from the pipesinto the Water so as to condense said steam partly in the Water and toput said Water into active circulation around the pipes A A platesadapted to direct the liquid current, and a steam-valve tube conductingthe regularly-generated steam to a motor, substantially as described andfor the purpose described.

3. In a steam-regenerative accumulator in combination, a boilercontaining water alone as heat-carrier adapted to regulate anintermittent current of steam produced by the escape from a machine asteam-inlet pipe, pipes A A extendinglongitudinally in the boiler andleading the intermittent current of steam from the inlet-pipe in theinterior of the boiler, a vertical shaft formed between the said pipes AA, steam-outlets in the said pipes A A in order to discharge theintermittent current of steam in the Water and to put the said waterinto active circulation around the pipes A A, plates adapted to directthe liquid current, a steam-valve tube conducting the regulated currentof steam to a motor, a safety-valve and an auxiliary hearth for thepreliminary heating of the heat-carrier, substantially as described andfor the purpose set forth.

In Witness whereof I have hereunto set my hand in presence of twoWitnesses.

AUGUS'IE OAMILLE EDMOND RA'IEAU.

Witnesses:

EDoUARD SAUVAGE, GEORGES Lmronvn.

